Time-lock



I I m 3 Sheets-Shet 2.

S. SHAW.

TIME LO'GK. No. 253,317. Patented Feb. 7,1882.

(ModeL) 3 Sheets-Sheet; 3.

s; SHAW.

TIME LOOK. N0. 253,317. Patented Feb. 7,1882.

UNITED STATES PATENT OFFIcE SUMNER SHAW, OF BOSTON, MASSACHUSETTS.

TIME-LOCK.

SPECIFICATION forming part of Letters Patent No. 253,317, dated February '7, 1882.

Application filed November 24, 1880. (Model.) 7

To all whom it may concern:

Be it known that I, SUMNER SHAW, a citizen of the'United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Im provements in Time-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements on the patents granted to me on the'25th day of November, 1879, and on the 19thday of October, 1880, for time-locks for safes, vaults, &c.; and itconsists, in combination with the hinged locking-lever and its locking-projection, of an index gear-Wheel operated by time mechanisms, and provided with V-shaped teeth, into the spaces of which a connecting-pin on a sliding block in the adjustable disk-wheelis caused to look by the influence of a spring, so as to enable the'person in charge to adjust the diskwheel so that the bolt-work of the safe or vault cannot be moved to open the door until the desired time agreed upon, when the sliding blockon the adjustable disk-wheel is brought opposite to the projection on the hinged locking-lever, causing said lever to be tipped on its fulcrum by its own. gravity or by the influence-of a spring, so that its outer free end is raised sufficiently to allow the bolt-work of the safe-door to be moved. The disk-wheel can be adjusted instantly and withgreat ease simply by exerting a slight, pressure toward the center thereof on a projecting pin, causing the sliding block to be disengaged from the V- shaped. teeth on the index gear-wheel, and when in thisposition the graduated disk-wheel can be freely turned around its axis to any desired position and there connected to the index gear-wheel, so that the door cannot again be opened after it is closed until the arrival of the hour for which the disk-wheel is adjusted.

My invention further consists in a time mechanism for safes, vaults, 850., of the combination of an index gear-wheel, a pair of independent drivers geared independently to the index gear-wheel and provided each with intermediate tooth-clutches, by which arrangement each driver or clock-movem ent may work in unison with or independent of the other, so that in case one of them should have run down or accidentally be stopped from any cause whatsoever the other will continue to operate upon the index gear-wheel.

My invention consists, further, of the combination, with the jointed lever and the adjustable disk-wheel, of a stationary block or projection onthe inside of the safe or vault door, and a movable wedge dependent from the end of the locking-lever and operated by the same to effect a lock between the stationary block aforesaid and the carrier-baror the bolt-work of the safe-door when the latter is shut and the bolts thrown in, so that the door cannot be opened until the aforesaid movable wedge has been raised upward by the looking-lever and disengaged from the stationary block and the carrier-bar or the bolt-work, which is accomplished automatically the instant that the slide ing block on the disk-wheel comes opposite to the projection on the locking-lever, the inner end of which then descends and the outer end ascends, carrying with it the wedge, and thereby disngages and unlocks it from the stationary block and the carrier-bar or the bolt-work, as described. Inthis manner a burglar-proof time-lock is produced that may be used with perfect safety without the addition of a key or combination-lock, and if so used no hole or perforation of any kind is necessary through the door, thus rendering it impossible to insert any explosives or tools for breaking the safe open.

Finally,my invention consists, in atime-lock mechanism for safes, vaults, 850., in combination with a clock-movement, of abell or sounder so constructed and arranged as to give an alarm of shorter or longer duration to indicate that the clock-movement needs winding up, so as to prevent its running down when the safe or vault door is locked, in a manner as will here- 5 inafter be more fully shown and described, reference being had to the accompanying drawings, on which-- 7 I i Figure 1 represents a front elevation. Fig.

2 represents a rear view. Fig. 3 represents a 10c plan view; and Fig. 4 represents a horizontal section on the line A B, shown in Fig. 1.

Similar letters refer to similar parts wherever they occur on the different parts of the drawings.

a is the safe or vault door, with the boltwork 11 b and carrier-bar b, as usual.

0 o is the frame or supporting plates for the time-lock mechanism. which is secured to the safe or vault door in the usual manner.

(1 01 represent a pair of independent springdrivers or clock-movements. The driver at is provided with gear-wheel c, engaging into the pinion j, that is secured to the shaft or pin g, on which the pinion h is loosely journaled.

i is one half of a tooth-clutch on the side of the pinionf, and k is the other half of the tooth-clutch on the side of the loose pinion h, for the purpose set forth.

I is a coiled spring surrounding the pin 9, between a filed collar thereon and loose pinion h, for the purpose of keeping the said toothclutches i It looked together during the operation of the driver d, which spring is sufflciently yielding to allow said tootl1-clutches z k to pass by each other in case the driver d is at rest and the opposite driver, d, is in operation. The loose pinion h gears into the wheel m, secured to the pin n, which is also provided with the pinion 0, that gears into the loose pinion p, which latter meshes into the disk-operating gear-wheel G. In a like manner the intermediate connecting mechanism between the second driver, d, and the disk-operating gear-wheel 0 consists of gear-wheel a, pinion j, pin 9, loosely-journaled pinion h ,tooth-clutches i k, coiled spring l, gear m, pin it, pinion o, and loose pinion p, as shown. The disk-operating gear-wheelOis movable around the stationary pin q, and it is provided upon its face with V-shaped teeth 1' r r, as shown in Fig. 1, for the purpose set forth.

D is the adjustable index-wheel, also movable around the axis g, which disk-wheel is provided with a notch or groove, 8, in which the sliding block if is movable in and out to and from the center of the wheel. On its under side the said sliding block it is provided with a pin, t, that is caused to lock and enter between any desired pair of V-shaped projections 1' r on the disk-operating gear-wheel O by the influence of the spring t, as shown, and for the purpose set forth.

a is an outward-projecting pin or knob on the sliding block t, by means of which the latter can be moved by hand toward the center of the disk-wheel, so as to disengage the pin t from the V-shaped teeth on the disk-operating gear-wheel 0 when it is required to adjust the index-disk D to the desired position and time for unlocking the safe or vault door, for which purpose the said disk-wheel is graduated and numbered as shown in Fig. 1.

E is the lockinglever, hung on a fulcrum at w, and provided with its tooth or locking-projection v, preferably provided with an an ti-frictional roll, a, as shown, which projection is caused to drop, by the gravity of the lever E or by the influence of a spring, into the notch or groove 8 on the index-disk D when said groove is moved opposite to the projection 1), thereby causing the inner end, E, of the lever E to descendand the outer end, E, thereof H is the stationary block, attached to the inside of the door a, as shown in Fig. 1.

The movable wedge G is preferably provided with anti-frictional rollers G G on its opposite inclined faces, as shown in Fig. 1, to prevent its clogging or bending when in its locking position. 7

I prefer to provide the carrier-bar b with an inclined projection, 11, between which and the stationary block H the movable wedge G is caused to drop by the influence of the spring E on the lever E as soon as the door is locked and the bolt-work thrown in, thus preventing the door from being opened and the bolt-work thrown out until the notch s on the index-disk is moved by either of the independent clockmovements at d opposite to the projection 02, when the lever E is moved 011 its fulcrum, causing the outer end, E, to ascend, and with it the movable wedge G, to the position as shown in dotted lines in Fig. 1, when the bolt-work b b can be thrown out by means of the usual handle or knob.

The alarm mechanism is preferably carried out asfollows: To the spindle dof the driver at is secured a pinion, I, gearing into the pinion K, to the face of which is secured the small pinion L, that meshes into the gear-wheel M, as shown in Fig. 1. The gear-wheel M is provided on its side with a segmental gear-ring, M, which during a portion of the latter part of its revolution is caused to engage with a pinion, N, secured to a pin, N, to the rear end of which is secured the trunnion-wheel O, having trunnions or projections O O, as shown, which during the rotation of the wheel 0 act upon the small arm P, which is hinged to the stud Q, as shown in Fig. 2. On the stud or pin Q is also hinged the hub R, with its striker S, that acts upon the bell T, as shown. It is a projection on the hub R, on which the arm P acts to raise the striker S, as usual, on bellalarms. R is a notch on the hub R, and R is a stationary pin on the plate 0 to prevent the striker S from touching the bell T after it has been struck; and UVare springs, connected to the arm P and hub B in the usual manner.

What I wish to secure by Letters Patent, and claim, is-

1. In a time-lock mechanism for safes, the disk-operating gear-wheel G, with its V-shaped ICU teeth 1 r r, combined with its concentricallyarranged index-disk D, having notch s, sliding block t, and locking-projection t, and the lever E, with its projection '17, as set forth, by which the index-disk D may be disconnected from the disk-operating gear-wheel G bydrawin g the block ttoward the center or automatically by the action of thelever E, as described.

2. lhe combination of thejointed lever E, its projection v, index-disk D, its notch s, the stationary block H on the door a, the movable wedge G, attached to and operated by the lever E, to effect a lock between the stationary block H and the bolt-work of the safe when the door 15 is shut and the bolts thrown in, as described. I

3. In a time-lock mechanism,the gear-wheel M, actuated by the driver d, and having a segmental gear-ring, M, attached to its face, to en-.

In testimony whereof I have affixed my sig- 25 nature in presence of two Witnesses.

SUMNER SHAW. Vitnesses: I

ALBAN ANDREN, HENRY GHADBOURN. 

